{
  "id": "CVE-2021-3573",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2021-08-13T14:15:07.617",
  "lastModified": "2021-08-24T19:21:41.213",
  "vulnStatus": "Analyzed",
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      "lang": "en",
      "value": "A use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user calls ioct HCIUNBLOCKADDR or other way triggers race condition of the call hci_unregister_dev() together with one of the calls hci_sock_blacklist_add(), hci_sock_blacklist_del(), hci_get_conn_info(), hci_get_auth_info(). A privileged local user could use this flaw to crash the system or escalate their privileges on the system. This flaw affects the Linux kernel versions prior to 5.13-rc5."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 un uso de la memoria previamente liberada en la funci\u00f3n hci_sock_bound_ioctl() del subsistema HCI del kernel de Linux en la manera en que el usuario llama a ioct HCIUNBLOCKADDR o de otra manera desencadena una condici\u00f3n de carrera de la llamada hci_unregister_dev() junto con una de las llamadas hci_sock_blacklist_add(), hci_sock_blacklist_del(), hci_get_conn_info(), hci_get_auth_info(). Un usuario local privilegiado podr\u00eda usar este fallo para bloquear el sistema o escalar sus privilegios en el sistema. Este fallo afecta al kernel de Linux versiones anteriores a 5.13-rc5."
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          "userInteraction": "NONE",
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1966578",
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